Arash Deljoo is a Network Engineer and Professional Instructor with over 20 years of experience in networking, network design, implementation, troubleshooting, and technical training.

Throughout his career, Arash has taught a wide range of Cisco technologies and certification tracks, including CCNA, CCNP Enterprise, CCIE-level networking, BGP, MPLS, Segment Routing, SD-WAN, IPv6, QoS, VPNs, and advanced network troubleshooting.

As a Udemy and LinkedIn Learning instructor, Arash has built an exceptional teaching portfolio, with 21 courses selected for Udemy Business and 9 courses published on LinkedIn Learning—a remarkable milestone in his professional teaching career. He has helped thousands of students and network engineers worldwide develop practical, job-ready skills.

His teaching approach focuses on clear explanations, deep technical understanding, and extensive hands-on labs, helping students prepare for certifications, advance their careers, and master real-world networking technologies.